Cut-points for associations between vitamin D status and multiple musculoskeletal outcomes in middle-aged women.

What Was Tested

The paper reports a study of Vitamin D, K2, Magnesium and Zinc, published as a randomized controlled trial.

This was the first study examining optimal vitamin D status for musculoskeletal health in middle-aged women.

Who Took Part

The abstract describes 344 women taking part.

By PubMed's age tags, the people studied were adults and middle-aged adults, women only.

This is a cross-sectional study of 344 women aged 36-57 years.

Cut-points for associations of serum 25OHD with lumbar spine (LS) and femoral neck (FN) bone mineral density (BMD), lower limb muscle strength (LMS), timed up and go test (TUG), functional reach test (FRT), lateral reach test (LRT), and step test (ST) were explored using locally weighted regression smoothing and nonlinear least-squares estimation, and associations above and below the identified cut-points were estimated using segmented regression.

How the Study Was Run

In design terms this was a randomized study.

The women were allocated by chance, so the Vitamin D, K2, Magnesium and Zinc group and the comparison group should start out alike.

What Was Measured

The subject headings attached to it are Bone Density, Cross-Sectional Studies, Femur Neck, Lower Extremity, Lumbar Vertebrae, Muscle Strength and Osteoporosis, Postmenopausal.

The authors tagged it with the keywords 25-Hydroxyvitamin D, Balance and Middle-aged women.

What This Means in Plain Language

The paper is a randomized study of Vitamin D, K2, Magnesium and Zinc in 344 women.

With several hundred people or more, it is a fairly large study for this kind of research.

Results are reported in around 5 sentences of the abstract; we leave them to the paper itself rather than summarise them.

The publication is from 2017 (Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA), a journal based in England.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.